Jul 29, 2012 · (2) Home strengthening exercise (1) - for the middle back muscles (3) Home strengthening exercise (2) - to stop the chin poking out (4) Neck posture made really simple (5) Home massage (1) - for ... The Neck Flex® is a revolutionary patented head harness and training system that is changing the face of neck training as we know it. The Neck Flex utilizes a ground breaking design model which promotes the most versatile, effective, and safest means possible in which to train your neck. Neck pain is a common ailment that can be distracting at best and debilitating at worst. Strengthening the neck, as well as supporting muscles such as the shoulder girdle and the trapezius muscle of the back, may help to reduce neck pain. Strengthening the neck is also an excellent way to improve ones' overall posture. Strong shoulder and neck muscles are essential in almost all sports, particularly those involving contact, pushing or throwing. During off-season and in-season weight training sessions, athletes... I approach this from a background as a fighter and strength and conditioning coach for Thai boxers. The neck gets plenty of punishment during Thai boxing training let alone fighting.